ATE514228T1 - SIGMA-DELTA MODULATOR WITH LOW POWER CONSUMPTION - Google Patents
SIGMA-DELTA MODULATOR WITH LOW POWER CONSUMPTIONInfo
- Publication number
- ATE514228T1 ATE514228T1 AT06252616T AT06252616T ATE514228T1 AT E514228 T1 ATE514228 T1 AT E514228T1 AT 06252616 T AT06252616 T AT 06252616T AT 06252616 T AT06252616 T AT 06252616T AT E514228 T1 ATE514228 T1 AT E514228T1
- Authority
- AT
- Austria
- Prior art keywords
- sigma
- delta modulator
- low power
- decimation filter
- power consumption
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M3/324—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement
- H03M3/344—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement by filtering other than the noise-shaping inherent to delta-sigma modulators, e.g. anti-aliasing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
- H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
- H03M3/424—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a multiple bit one
- H03M3/426—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a multiple bit one the quantiser being a successive approximation type analogue/digital converter
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
- H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type
- H03M3/416—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type all these quantisers being multiple bit quantisers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/03—Aspects of the reduction of energy consumption in hearing devices
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
A low power analog-to-digital channel includes a decimation filter coupled to a sigma-delta modulator. Various embodiments include a decimation filter including an output and a sigma-delta modulator coupled to the output of the decimation filter, where a clock frequency applied to the decimation filter is approximately an integral multiple of a sampling frequency of the sigma delta modulator. In an embodiment, the sigma-delta modulator includes one or more successive approximation converters. In an embodiment, the sigma delta modulator includes one or more area efficient integrators.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/132,705 US7142144B1 (en) | 2005-05-19 | 2005-05-19 | Low power sigma delta modulator |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE514228T1 true ATE514228T1 (en) | 2011-07-15 |
Family
ID=36699139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT06252616T ATE514228T1 (en) | 2005-05-19 | 2006-05-19 | SIGMA-DELTA MODULATOR WITH LOW POWER CONSUMPTION |
Country Status (5)
Country | Link |
---|---|
US (2) | US7142144B1 (en) |
EP (1) | EP1724930B1 (en) |
AT (1) | ATE514228T1 (en) |
CA (1) | CA2547050C (en) |
DK (1) | DK1724930T3 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1538752A1 (en) * | 2003-11-28 | 2005-06-08 | Freescale Semiconductor, Inc. | Clock pulse generator apparatus with reduced jitter clock phase |
TWI253055B (en) * | 2004-10-11 | 2006-04-11 | Sunplus Technology Co Ltd | Sound playing device using sigma-delta pulse width modulation |
US7142144B1 (en) * | 2005-05-19 | 2006-11-28 | Ami Semiconductor, Inc. | Low power sigma delta modulator |
JP4662826B2 (en) * | 2005-08-05 | 2011-03-30 | 三洋電機株式会社 | Switch control circuit, ΔΣ modulation circuit, and ΔΣ modulation AD converter |
US7221303B1 (en) * | 2006-03-24 | 2007-05-22 | Cirrus Logic, Inc. | Delta sigma modulator analog-to-digital converters with multiple threshold comparisons during a delta sigma modulator output cycle |
CN101467116B (en) * | 2006-06-15 | 2010-10-13 | Nxp股份有限公司 | A method of providing a clock frequency for a processor and electronic device |
US7298308B1 (en) * | 2006-09-11 | 2007-11-20 | Cirrus Logic, Inc. | Delta-sigma modulator having predictive-controlled power consumption |
US20090161802A1 (en) * | 2007-12-21 | 2009-06-25 | Intel Corporation | Receiver with adaptive power consumption and a method implemented therein |
WO2010086348A2 (en) * | 2009-01-28 | 2010-08-05 | St-Ericsson Sa | Method and system for measuring a time constant of an integrated circuit, and integrated circuit provided with such a system |
US7928886B2 (en) * | 2009-07-01 | 2011-04-19 | Infineon Technologies Ag | Emulation of analog-to-digital converter characteristics |
US9806745B2 (en) * | 2015-02-10 | 2017-10-31 | Marvell World Trade Ltd. | Systems and methods for low pass filter mismatch calibration |
EP3340654A1 (en) | 2016-12-20 | 2018-06-27 | Widex A/S | Integrated circuit component for a hearing assistive device |
JP7139588B2 (en) * | 2017-09-22 | 2022-09-21 | カシオ計算機株式会社 | CONVERTER, ELECTRONIC INSTRUMENT, INFORMATION PROCESSING DEVICE, CONVERSION METHOD AND PROGRAM |
CN113471798B (en) * | 2021-05-14 | 2022-08-19 | 中国人民解放军空军军医大学 | Optical fiber laser for vertebra treatment |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2716336B1 (en) * | 1977-04-13 | 1978-07-06 | Siemens Ag | Procedure and hearing aid for the compensation of hearing defects |
AT398669B (en) | 1991-11-13 | 1995-01-25 | Viennatone Gmbh | METHOD FOR PROCESSING SIGNALS |
US5408235A (en) * | 1994-03-07 | 1995-04-18 | Intel Corporation | Second order Sigma-Delta based analog to digital converter having superior analog components and having a programmable comb filter coupled to the digital signal processor |
US5648779A (en) * | 1994-12-09 | 1997-07-15 | Advanced Micro Devices, Inc. | Sigma-delta modulator having reduced delay from input to output |
US5578935A (en) * | 1995-05-25 | 1996-11-26 | Texas Instruments Incorporated | Undersampling digitizer with a sampling circuit positioned on an integrated circuit |
US5654711A (en) * | 1995-06-07 | 1997-08-05 | Asahi Kasei Microsystems Ltd. | Analog-to-digital converter with local feedback |
JP3392670B2 (en) * | 1996-11-28 | 2003-03-31 | 株式会社東芝 | Sampling device |
JPH10322214A (en) * | 1997-05-15 | 1998-12-04 | Nippon Baa Braun Kk | A/d converter with offset elimination function |
US6111531A (en) * | 1997-05-30 | 2000-08-29 | Lucent Technologies | Parallel architecture for a bandpass sigma-delta modulator |
US5936562A (en) * | 1997-06-06 | 1999-08-10 | Analog Devices, Inc. | High-speed sigma-delta ADCs |
US5982313A (en) * | 1997-06-06 | 1999-11-09 | Analog Devices, Inc. | High speed sigma-delta analog-to-digital converter system |
EP1111803B1 (en) * | 1999-12-23 | 2004-10-27 | Motorola, Inc. | Dual mode with a single receiver circuit |
US6567021B1 (en) * | 2000-08-18 | 2003-05-20 | Texas Instruments Incorporated | Design-for-test circuit for successive approximation analog-to-digital converters |
US6531973B2 (en) * | 2000-09-11 | 2003-03-11 | Broadcom Corporation | Sigma-delta digital-to-analog converter |
US6920182B2 (en) * | 2001-01-09 | 2005-07-19 | Microtune (Texas), L.P. | Delta-sigma modulator system and method |
US20020106091A1 (en) * | 2001-02-02 | 2002-08-08 | Furst Claus Erdmann | Microphone unit with internal A/D converter |
US6577258B2 (en) * | 2001-10-01 | 2003-06-10 | Nokia Corporation | Adaptive sigma-delta data converter for mobile terminals |
CN1575540A (en) * | 2001-10-25 | 2005-02-02 | 皇家飞利浦电子股份有限公司 | Commutation of sensorless direct-current motors |
US6603418B2 (en) * | 2001-12-14 | 2003-08-05 | Teradyne, Inc. | High precision, high-speed signal source |
US20040156520A1 (en) * | 2002-04-10 | 2004-08-12 | Poulsen Jens Kristian | Miniature digital transducer with reduced number of external terminals |
US6812874B1 (en) * | 2002-05-22 | 2004-11-02 | Andrew Corporation | Method and apparatus for processing analog signal |
US6670902B1 (en) * | 2002-06-04 | 2003-12-30 | Cirrus Logic, Inc. | Delta-sigma modulators with improved noise performance |
US6674381B1 (en) * | 2003-02-28 | 2004-01-06 | Texas Instruments Incorporated | Methods and apparatus for tone reduction in sigma delta modulators |
US7212137B2 (en) * | 2003-10-09 | 2007-05-01 | Cirrus Logic, Inc. | Delta sigma modulator with integral decimation |
US6844840B1 (en) * | 2003-10-14 | 2005-01-18 | Cirrus Logic, Inc. | Successive-approximation-register (SAR) analog-to-digital converter (ADC) and method utilizing N three-way elements |
DE10351384A1 (en) * | 2003-11-04 | 2005-06-23 | Infineon Technologies Ag | Multi-bit SDM with successive approximation core ADC, e.g. for mobile communications, uses reference DAC in core-ADC and as feedback-DAC of modulator |
US7180432B2 (en) * | 2004-02-27 | 2007-02-20 | Freescale Semiconductor, Inc. | Method and apparatus for complex cascade sigma-delta modulation and single-sideband analog-to-digital conversion |
US6965339B2 (en) * | 2004-04-07 | 2005-11-15 | Motorola, Inc. | Method and system for analog to digital conversion using digital pulse width modulation (PWM) |
US6956517B1 (en) * | 2004-06-12 | 2005-10-18 | L-3 Integrated Systems Company | Systems and methods for multi-channel analog to digital conversion |
US7142144B1 (en) | 2005-05-19 | 2006-11-28 | Ami Semiconductor, Inc. | Low power sigma delta modulator |
-
2005
- 2005-05-19 US US11/132,705 patent/US7142144B1/en active Active
-
2006
- 2006-05-15 CA CA002547050A patent/CA2547050C/en active Active
- 2006-05-19 EP EP06252616A patent/EP1724930B1/en active Active
- 2006-05-19 AT AT06252616T patent/ATE514228T1/en not_active IP Right Cessation
- 2006-05-19 DK DK06252616.5T patent/DK1724930T3/en active
- 2006-11-20 US US11/561,828 patent/US7692568B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US7142144B1 (en) | 2006-11-28 |
EP1724930B1 (en) | 2011-06-22 |
US7692568B2 (en) | 2010-04-06 |
DK1724930T3 (en) | 2011-08-01 |
US20060261989A1 (en) | 2006-11-23 |
CA2547050C (en) | 2009-12-22 |
EP1724930A2 (en) | 2006-11-22 |
US20070252736A1 (en) | 2007-11-01 |
CA2547050A1 (en) | 2006-11-19 |
EP1724930A3 (en) | 2007-06-27 |
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Legal Events
Date | Code | Title | Description |
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RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |